Needle Seal (For pH 1-14, for operation up to 130 Back Catalog number: CTS-21089 Availability: In the manufacturer's stock Price on request - + Recommended CTS-21586 1100 Series Essential Pack, G1310A/G1311A Pump Price on request CTS-11435 Seal, Needle PEEK™ Price on request CTS-21085 Rotor Seal, 6 port, -COH Price on request